I’m gonna go real obscure here. Is it a Road Rover?
Nissan PAO?
Nay
Hint: it is, indeed, a prototype.
FSO Syrena 110?
There are similarities, but no.
Hint 2: a front wheel drive hatchback.
I think I found the car but I have no idea what the correct name for it would be.
the “Delta” prototype designed to replace the Syrena, developed by BKPMot, carrying “TUC” (fictional brand?) badges?
Yes, congrats for finding this mostly forgotten construction 
Austin Cambridge?
Hilman Minx?
It’s neither of those
A moskvic of some sort?
Nope
That’s not a VW buggy, is it?
Nope.
Clue: it’s not from Europe
Toyota Crown?
Nope